<template>
  <div class="icons">
    <swiper>
      <swiper-slide v-for="(page, index) of pages" :key="index">
    <div class="icon"
    v-for="item of page"
    :key="item.id">
      <div class='icon-img'>
        <img class='icon-img-content' :src='item.imgUrl' />
      </div>
      <p class="icon-desc">{{item.desc}}</p>
    </div>
    </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
    @import '~styles/varibles.stylus'
    @import '~styles/mixins.stylus'
.icons >>> .swiper-container
    height 0
    padding-bottom 50%
.icons
    margin-top .1rem
.icon
    position relative
    overflow hidden
    float: left
    width 25%
    height 0
    padding-bottom 25%
.icon-img
      position absolute
      top 0
      left 0
      right 0
      bottom .44rem
      box-sizing: border-box
      padding 0.1rem
.icon-img-content
      display: block
      margin 0 auto
      height 100%
.icon-desc
    position absolute
    left 0
    right 0
    bottom 0
    height .44rem
    line-height .44rem
    color #333
    text-align center
    overflow: hidden
    white-space: nowrap
    text-overflow: ellipsis
</style>
